hi,

will it support by default or i should insert some tunnel line card.

no cards should be nessary - try to configure:-

int tun0

encapsulation tunnel

see what happens?

i have my colleagues saying 12000 GSR doesnt support GRE Tunneling ? there are some limitations.is it so.

do anyone confgiured on GRE tunnel on GSR.

rgds/shiva

Hi Shiva,

Yes, it needs a card to enable GRE tunneling.

It's there in the same document in prerequisites section.

Dedicated Line Card Required

In order for a GRE tunnel on a Cisco 12000 series Internet router to come up, a Cisco 1-port OC-48 POS line card (tunnel server card) must be installed.

Apart from this, there are no other limitations as far as I know.

Regards...

-Ashok.

hi ashok,

do you use GRE tunneling on your 12000 series router or you are sharing your knowledge expertise.